Alright, let's work through 6821 times 931 step by step
6821 × 931 = 931 × (6821)
+ 931 × 1 what gives us 931
+ 931 × 20 resulting in 18620
+ 931 × 800 producing 744800
+ 931 × 6000 that is equal 5586000

= 6350351
